Water-heater.



No. 750,555. l I PATENTED JAN. 24,` 1905.

A. H'. HUMPHEEY.

WATEE HEATER.

APLIGA'IION FILED JUNE 26, 1900.

' 2SHBETS-SHEET 1.

G A 4 F l 0 j) j 0,,

1/ 4 I nnnnnnnnnnnnnnannnqnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn N5. 700,565. v P ATENTBD 01501.24, 1005.

WATER HEATER.

APLIOATION ULEB JUNE 2s, 1900.

2 smal:T's-SHEMA 2. I

'Witlgessesz hplvelgtor Patented January 24, 1905. r

PATENT OFFICE.

ALFRED H. HUMPHREY, OF KALAMAZOO,'l\/I1CHIGAN.

WATER-HEATER.

SPECIFICATION 4formngpart of Letters Patent No. 780,565, dated January 24, 1905.

i Application filed June26, 1900. Serial No. 21,692.

T @ZZ whom, it may concern.'

Be it-known that I, ALFRED H. HUMPHREY,

i' a citizen of the United States, residing at the city of Kalamazoo, in the county of Kalama- Zoo and State of Michigan, have invented .certain new and useful Improvements in- Water- Heaters, of which the following is a specification.

This invention relates to improvements in water-heaters.

It relates to aheater especially adapted for use with gas as a fuel, though I am aware that other burners or means might be provided in connection with the` remaining parts. The heater is of the kind commonly known as instantaneous.

The objects of my invention. are, rst, to provide an effective means for'delivering the heat of the burner to a current of water passing through the heater or to any water or liquid contained in the heater; second, to provide an improved construction and arrangement of parts whereby a compact and eiiicient heater is produced which can be manufactured at light expense and with the use of a very small amount of material; third, to provide an improvedconstruction lof water-circuit through a heater which utilizes tubes without bending and which is so arranged that the heater is easy to clean; fourth, to provide .an improved heat-absorbing vplate and conlimproved construction and connection of the tubes forming the circuit which permits of the easy support of the parts in the casing; seventh,to provide an improved form of burner for use in .this connection. Further objects will denitely appear in the detailed description to follow.

I accomplish the objects of my invention by the devices and' means described in this speciication.

The invention is clearly defined, and pointed out in the claims.

elevation taken on line 2 2 of Fig. 1.

, A structure embodying thefeatures of my invention is clearly illustrated in the accompan ying d1awings,f orming a part of this specilication, in which Figure 1 is avertical longitudinal detail sectional elevation on line 1 1 of Fig. 2 through a heater embodying the features of my invenL tion, the burner being shown in full lines. Fig.'2 isa transverse vertical detail sectional Fig. 3V is a detail end elevation of the water-receptacle and adjacent parts removed from the main casing of the machine, the view being taken from the left-hand end of Fig. l, a portion being shown in section. Fig. t is asimilar detail end elevation taken from the righthand en d of Fig. 1. Fig. 5 is a detail side elevation of a modified construction of waterreceptacle, partially in section on line 5 5 of Fig. 6. Fig. 6 is a detail end elevation from the left-hand end of Fig. 5, a portion. being shown in section. Fig. 7 is a detail view of one of the absorbing-plates appearing in Fig. 5. Fig. 8 is a detail view of one of the corrugated absorbing-plates appearing in the preferred construction shown in Fig. l.

In the drawings all .of the sectional viewsL are taken looking in the direction of the little arrows .at the ends of the section-lines, and similar characters of reference refer to simi-- lar parts throughout the several views.

Referring to the lettered partsof the drawings, A is the main or outer casing, which.

serves as a support for the remaining portions of the device. The case in general contour is elongated and rectangular, the upper walls A Al being curved inwardly to form a restricted passage along the top of the casing v formed by a connection, one from the central tubeC to the upper left-hand tube C', which ap'- pears in Fig. 4C.k The tube C is connected to the IOO tube C directly below itat the opposite end, as appears in Fig. 3. The two bottom tubes C and C are connected by a chamber 3, (see Fig. 4,) and the opposite end of tube 0 is connected by the connection 4 to tube C, as appears in Fig. 3. Suitable caps m are provided opposite the ends of each tube, so that they can be readily opened for cleaning. These caps are screw-threaded and engage the ends of tie-rods which hold the manifolds in position. A rod F extends through the center tube C and is retained by tapered nuts a n, screwed onto the same, as appears in Fig. l. The end of the nut fn at the left hand of Fig. l is reduced in size and is screw-threaded at its outer end at a to receive a suitable nut. This reduced portion is inserted through the end of the casing A and the nut screwed on as a retaining device. The nut a at the righthand end of Fig. l is reduced and formed into a smooth round pin, which projects through a perforation in the case, where it is allowed to move freely back and forth, which is desirable on account of the expansion and contraction due to the variations in temperature of the water-receptacle within. This pin n is of considerable length, so that the waterreeeptacle can be moved far enough to the right to withdrawthe pina, when by dropping the same downward the water-receptacle can be easily removed or inserted.

Supported on these tubes C C C C 0 are a series of plates D, which are preferably corrugated and are provided with little collars or sleeves D, which embrace and contact closely with the walls of the tubes, the same being forced to position under pressure or otherwise tightly fitted, and it is sometimes found desirable to make the union more perfectbysoldering. Thisisconvenientlydoneby dipping in a tin or similar bath. To each side of these plates, which are allowed to project beyond the tubes laterally, I secure plates G G, the lower edges of which flare outwardly and project beneath the lower edges of the plates. To the free end of the central tube C is connected an inlet water-pipe E, and to the outer or free end of the tube Cm is connected the delivery-pipe E, so that acurrent of water entering at E will circulate through all the pipes successlvely. A burner H is provided in the lower part of the casing, which is a long tapering i tube flattened on its upper side and provided desirable.

fective that a comparatively large stream of water passing therethrough will be heated substantially to the boiling-point, and as the apparatus itself contains a very small aniount of material there is no loss in waiting for the apparatus to heat up. When the gas and water are shut off simultaneously and the temperature of the plates tested, they will be found to be comparatively cool, which indicates the high efciency of the heat absorption.

I have thus fardescribed the preferred construction. In Figs. 5, G, and 'T I show a somewhat modified and cheaper construction and one particularly adapted for use as a` circulating-heater, as a free flow of the water is there In this structure the manifolds embrace all of the tubes; but asingle tie-rod namely, the rod F at the centeris used, and the heatabsorbing plates are made fiat, as appears at K in Figs. 5 and 7 with the collars or sleeves D to embrace the tubes. This is a very efcient heater and on account of its cheapness and the unobstructed flow of the water is adapted for many uses. The delivery and discharge pipes are arranged the same as before and are connected to the manifolds B and B', respectively.

I have described the parts constituting my improved water-heater very minutely. and l desire to state that the same can be greatly varied without departing from my invention. I have already stated that any style of burner or heat-generator might be used to deliver a current of heated air or gases to the casing. The number of tubes forming the water receptacle or passage can be varied, and the form of the absorbing-plates and the connection of the same to the tubes is also capable of variation, as well as the form of manilplds. vln fact, manifolds might be dispensed with and the pipes coiled or bent; but such structure would not be so desirable in some particulars as the one I have shown. It would be impossible to illustrate all of these modifications, so I do not attempt it. I show the form l consider most practical and another economical form. I consider the particular form shown to possess advantages over any other, and therefore I wish to claim the structure both specifically and broadly.

Having thus described my invention, what l claim as new, and desire to secure by Letters Patent, is-- l. In a water-heater, the combination of an outer casing A open at the top and bottom; a burner arranged in the bottom of said casing; a water-receptacle above said burner.I consisting of the central tube (l, and the tubes, C C", C and C" arranged about said central tube; a manifold B at one end havingl chambers 2 and 4 connecting the tubes C', and C, Cm, and CW respectively, and a manifold B at the opposite end having chambers l and 3 connecting the tubes C, and C and C, and C, respectively; rods extending through sait llO tubes and manifolds with screw-threaded nuts a n for clamping the same together, one'of said nutsbeing extended into a bolt and the other into a pin, to extend through the casing to support the same; a supply-pipe connected lateral edges of the plates G and extending downwardly and outwardly beneath the same to guidelthe heat upward between the plates, all coacting substantially as described and for the purpose specified.

2. In a water-heater, the combination of an outer casing A open at the top and bottom; a burner arranged in the bottom of said casing;

i a water-receptacle above said burner, consisting of the central tube 0, and the tubes 0', 0", 0"' and 0"" arranged about said central tube; a manifold Bat one end having chambers 2 and-4: connecting the tubes 0', and 0",

0"', and 0"" respectively, and a manifold B' lat the opposite end having chambers l and 3 connecting the tubes 0, and 0' and 0", and 0"' respectively; rods extending through said tubes and manifolds with screw-threaded nuts n n for clampingthe same together, one of said nuts being extended into a bolt, and the other into a pin, to extend through the casing to support the same; a supply-pipe connectedto the central tube 0 through the manifold B; a discharge-pipe E' connected to the free end ofthe tube-0"" through the manifold B'; a series of corrugated plates D having ysleeves D' fitting the said pipes and arranged parallel and substantially vertical between the said manifolds, all coacting substantially as described and for the purpose specified.

3. In a water-heater, the combination of an outer casing A open at the top and bottom; a'

tubes and manifolds with screw-threaded nuts t n a for clamping the same together, one of said nuts being extended into a bolt and the other into a pin, to extend through the casing to support the same; asupply-pipe connected to the central tube C through the manifold B; a discharge-pipe E' connected to the free end of the tube 0"" through the manifold B'; a series of plates Dhaving sleeves D' fitting the said pipes and arranged parallel and 'substantially vertical between the-said manifolds, all coacting substantially as described and for the purpose specified.

4. In a water-heater, the combination of the casing A open atits top and bottom; a burner arranged in the bottom of said casing; a water-receptacle above said burner, consisting of the central tube 0 and the tubes 0', 0", 0', and 0"", arranged about the same; manifolds at each end of said tubes; a supply-pipe connected to one of said manifolds, a dischargepipe connected to the opposite manifold; and a series of plates D having sleeves D' fitting the said pipes and arranged parallel and substantially vertical between the said manifolds,

` all coacting substantially as described and for the purpose specified. I

k5. In a water-heater, the combination of a suitable casing; a series of separated horizon- 'tal tubes connected together by suitable maniconnected together; aseries of vertical plates transverse to said tubes and connected therewith by suitable collars; a supply-pipe and a discharge-pipe connected to said tubes; and a burner so arranged that the heat therefrom will pass up between the plates and tubes for Athe purpose specified.

7. In a water-heater, the combination of a series of separated horizontal tubes suitably connected together; a series of vertical plates containing corrugations, transverse to said tubes and connected therewith by suitable collars; a supply-pipe and a discharge-pipe connected to said tubes; and a burner so arranged that the heat therefrom can .pass up between the plates for the purpose specified.l

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

ALFRED 1i. HUMPHn-EY. [n s] Witnesses:

A. E. HoUGH'roN, OTIs A. EARL.

IOO 

